Hi, Mindful Seeker and

You did fine for your first post

Wow~~
two sisters with BPD! Have they been diagnosed? Are they older or younger than you? How old are they? Do they live in the same home as you? It must've been hard growing up that way, and feels hard going forward
There are lots of people at this site who are going through exactly what you are, and are here to help... . You are in the right place if you feel you are in a tough spot
Can you tell us more about your situation, and just what is going on, so we can help you?